摘要
Two new ion-pair complexes, [ClBrBzPyN(CH3)2]2[Cu(mnt)2](rong class="boldFont">1rong>) and [ClBrBzPyN(CH3)2][Ni(mnt)2](rong class="boldFont">2rong>) have been obtained by self-assembly of the [M(mnt)2]x鈭?/sup> (M = Cu(II) or Ni(III), mnt2鈭?/sup> = maleonitriledithiolate, x = 1 or 2) anion and [ClBrBzPyN(CH3)2]+ ([ClBrBzPyN(CH3)2]+ = [1-(4鈥?chloro-2鈥?bromobenzyl)-4-dimethylaminopyridinium]) cation. The cations in rong class="boldFont">1rong> stack into a column through the CH鈰疊r hydrogen bonds and the 蟺鈰€ stacking interactions, while the [Cu(mnt)2]2鈭?/sup> (A) and the cations (C) stack alternately into a 1D column (i.e., of type 鈰疌CACCACC鈰?. The anions and the cations in rong class="boldFont">2rong> stack into segregated columns in which the Ni(III) ions form a uniform 1D zigzag magnetic chain. Magnetic susceptibility measurements in the temperature range 2-300 K show that rong class="boldFont">1rong> exhibits an antiferromagnetic coupling feature with 胃 = 鈭?5.3 K, while rong class="boldFont">2rong> shows characteristic of spin-gap (螖/kb = 1044.3 K) around 114 K.